Wild Horse mine, Wild Horse Canyon area, Cottonwood Mining District, Washoe County, Nevada, USAi

Regional Level Types
Wild Horse mine	Mine
Wild Horse Canyon area	Area
Cottonwood Mining District	Mining District
Washoe County	County
Nevada	State
USA	Country

Tectonics: Small

Deposit: The vein was located about 1902. A 5-stamp mill was in operation in 1912 treating the vein quartz for its gold & silver content. The workings explore two sets of mineralized faults, which cut a granodiorite stock intruding mesozoic metasedimentary rocks and hornblende gabbro. The mineralized fault zones consists of fractures, sheared, and sericitized granodiorite and range in thickness from 2 to 20 ft. Pyrite & small amounts of arsenopyrite occur as disseminations and pods in both the altered granodiorite of the mineralized zones and in the vein quartz ; info.src : 1 pub lit; 3 field observ all mining activity is along 2 major fault zones that strike n60w,dip 25sw, and n60e, steeply. The shear zones vary in thickness from a few feet to 20 ft. The host rock is a granodiorite which is near the contact of metasediments and another darker diorite or gabbro. Sample 2914 from main adit at bottom of canyon is quartz vein material with sulfides. Sample 2-915 was from one of the upper adits where a 10-ft shear zone is partially filled by a strongly iron-stained quartz vein bearing n70e. The mineralized vein has visible arsenopyrite, pyrite and other sulfides. Sample 2916 was chipped from a series of quartz veins in a dark grey intrusive-fine-grained sulfides p-resent in vein. Sample 2917 was cut from a 3-4 ft iron-stained- quartz vein bearing n-s, dip 65w. Small wooden sluice outside adit portal using water from a spring-fed stream. From this point, the ore was moved along a small path that was formerly tracked, and it was emptied into a small milling device.

Deposit type: Polymetallic veins

Development: 5-stamp mill operated in 1912. Locked gate 3 miles west of mine (1985). No new mining activity, but there is a new house under construction at the mine site and a fairly new house trailer at the mine site.

Geology: Quartz veins & stringers up to 2 ft. Thick occur in the fault zones

Ore(s): 2 Shear Zones.

Other Databases

Link to USGS MRDS:	10043899

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References